7 daughter colonies of the 4a were tested:
CH-51-13-1868-1984 CH-51-240-1786-1984 CH-51-240-1787-1984 CH-51-240-1994-1984 CH-51-240-2495-1984 CH-51-241-1993-1984 CH-51-241-2029-1984
6 tested queens were mated at the mating station:
CH-51-104-2095-1986 CH-51-104-2096-1986 CH-51-104-2097-1986 CH-51-104-2098-1986 CH-51-104-2099-1986 CH-51-104-2244-1986
10 daughter colonies of queens mated at the mating station were tested:
CH-51-104-2293-1987 CH-51-104-2294-1987 CH-51-104-2438-1987 CH-51-104-2548-1987 CH-51-104-2549-1987 CH-51-104-2785-1988 CH-51-104-2786-1988 CH-51-104-2789-1987 CH-51-108-2787-1988 CH-51-108-2788-1988